When A Drivers Hand And Arm Is Extended Downward. But there are a few instances you will need to use them to abide by your local traffic laws. The driver's left arm and hand are extended downward.
Extend your left arm out the driver's window and point your arm down with your fingers extended and your palm facing rearward. Flash your headlights so the driver will let you get through. Extend left arm at side at an angle of 45 degrees below the horizontal.
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Bend your elbow and point the hand down toward the road with your fingers extended. Raise the boom and lower the load. Keep your arm in this position at least until you come to a full stop. The next in the list of hand signals for riding a motorcycle is the one used to indicate the slow down gesture.
